Additional features include 3D effects, two-player co-op via local wireless, a filter to emulate the look of older televisions, customizable controls, the choice of playing the Japanese or International versions, the option to double the player's starting vitality, and a "Gunslinger" mode.

In "Gunslinger" mode, the player has access to all 14 weapon combinations during play and can freely switch between the four weapon types for each slot, as well as switching between the different firing modes of Red and Blue on the fly.